What is water hardness in fish tanks?

The hardness of water refers to the amount of dissolved minerals in it, and it's measured in two ways: General Hardness (GH) and Carbonate Hardness (KH), also referred to as alkalinity. The former measures magnesium and calcium, while the latter measures carbonate and bicarbonate ions.

FAQ

• Can you eat zander?

  I have eaten this fish many times and it is not that bad. As it is a carnivore and not a benthic forager (like a carp) there is no real problem with muddy tastes. People will say it's bony, but it only has a similar bone structure to a sea bass.

• Do you remove skin from fish?

  Although the skin is safe to eat on most types of fish, some people don't like the taste of it. Fortunately, it is easy to remove with a thin, sharp knife. You can take the skin off of a fillet by cutting underneath the meat. For whole fish, remove the head and fins first so you are left with a nice piece of meat.

• Is it okay to eat raw prawns?

  Prawns, which are similar to shrimp, can be eaten raw or cooked. However, eating a prawn raw increases the risk of food poisoning due to bacteria and improper preparation. ... If you do decide to eat prawns raw, make sure they are cold. Stop eating raw prawns if you notice a strange smell or taste.

• Where is the shrimp poop line?

  It runs along the back of the shrimp just beneath the surface, and it looks like a thin string filled with dark grit. Sometimes the vein is very prominent, other times you'll hardly notice it. It all depends on the shrimp and what it was eating right before it was caught.

• Do you have to clean gravel in fish tank?

  To properly clean new aquarium gravel, it must be done correctly! Cleaning new aquarium gravel properly is an important first step in keeping water quality high; gravel dust and residue can harm or even kill fish. ... These small particles should not make their way into a freshwater aquarium environment.

15 Related Question Answers Found:

• What percentage of fish are teleost?

  96 percent The vast majority of fish alive today -- approximately 96 percent -- are known as teleosts, a group of ray-finned fish that emerged 260 million years ago. Evolutionary biologists and paleontologists since Darwin have offered hypotheses to explain why teleosts seem to have "out-evolved" other groups.

• How deep do you fish for king mackerel?

  2) King mackerel love structure Areas of hard bottom, ledges, reefs, wrecks, and oil rigs will all attract and hold kings. Generally speaking, structure in water depths between 30 feet deep and 75 feet deep are the best spots. However, they can be found right along the beach as well as very far offshore.

• How long do you need to cook salmon to kill parasites?

  These parasites are usually killed by cooking the fish to a temperature of at least 145°F for fifteen seconds.

• Will community fish eat shrimp?

  Which Aquarium Fish Eat Shrimp? As it turns out, humans aren't the only ones that enjoy eating shrimp. Shrimp serves as an important food source for marine animals as well. Consequently, aquarium fish can also turn into predators if a shrimp population is introduced in their environment.

• Can fish swim up Niagara Falls?

  Do fishes swim up Niagara Falls? - Quora. No. In fact, the falls created an effective barrier to invasive species for centuries. However, fish can swim up the Welland Canal, which has been open for over a century.

• How can you tell if mackerel is off?

  How to tell if raw mackerel is bad? The best way is to smell and look at the mackerel: signs of bad mackerel are a sour smell, dull color and slimy texture; discard any mackerel with an off smell or appearance.

• Can you eat Nile tilapia?

  Nile Tilapia Thanks to the fish's delicious mild taste and nutritional benefits (high protein and low fat), Tilapia's popularity in America has surged over the past 20 years. Pioneering seafood companies like Regal Springs have helped Tilapia become the 4th most eaten seafood in USA (after shrimp, salmon and tuna).

• What does Tiger shrimp eat?

  Adult tiger prawns are omnivorous and eat a wide variety of food, including algal and plant material, other invertebrates, and dead/decaying organic matter. Most soft-bottom fishes and several invertebrates eat juvenile and adult tiger prawns.

• Can dogs eat tuna?

  Tuna is not toxic to dogs, and a tiny amount will not cause mercury poisoning. If you own both a dog and a cat, make sure your pup isn't eating the feline's food, as wet cat food often contains tuna. Cats are also susceptible to mercury poisoning, so consider choosing a cat food made with other kinds of fish.

• Can you freeze homemade baked clams?

  If you are going to freeze them, freeze them on a cookie sheet, stacked with wax paper in between layers, and wrapped in plastic or foil. Once the clams are frozen, put them in freezer bags so you can easily remove the quantity you want at any time (without them being frozen together).

• Can I eat cooked salmon cold the next day?

  Can you eat cooked fish cold the next day? 1 Answer. Yes, it's fine to refrigerate cooked fish. Many types of fish are excellent (better, even) served cold — shrimp and salmon are good examples.

• Does lemon kill bacteria in salmon?

  Vinegar resulted being the most effective in killing the bacteria whereas the water resulted in being the least effective. Lemon was the second most effective and the garlic solution was the third. The level of bacteria on refrigerated salmon was a bit higher than that of the fresh salmon.

• What size hooks for cut plug herring?

  Use the larger hook on the front of the bait and the smaller hook on the back. 4/0 and 3/0 hooks also match up well with a green label herring, but I like to use slightly larger hooks for our Alaska salmon fishing.

• What will happen if I eat frozen prawns?

  Is it safe to refreeze prawns? No, it isn't safe to refreeze prawns which are already thawed. When you refreeze thawed prawns, the process breaks down cells, takes away the moisture and changes the integrity of the protein. Another reason is that thawed food develops bacteria faster than fresh.

• How long is frozen fish good for past expiration date?

  Smoked fish can last for three to six months in the freezer, and commercially frozen fish will keep for 10 to 12 months if it doesn't thaw. Additionally, unopened canned fish (such as tuna) can keep for between two and five years past its printed date.